The game's lack of a two-player mode will be a profound disappointment for those gamers whose greatest Metal Slug flashbacks are fuelled by the showmanship and camaraderie of co-op play. [Oct 2008, p.123]

This title does all the right things in terms of challenge, weapons, character options, and level designs. The problem is that it rarely goes beyond what’s been previously established; aside from a few insanely awesome boss fights and a handful of fancy new throwaway underlings to ravage, nearly all of your foes have been plucked from the older titles.